Единственное и множественное число слов с латинскими и греческими корнями.
Таких слов относительно много. Они образуют множественное число по правилам, суммированным в таблице.
| Происхождение слова | Окончание в един- ственном числе | Окончание во мно жествен-ном числе | Примеры (в единственном числе) |
| Греческое | -is | -es | basis, crisis, hypothesis, analysis, thesis, axis |
| Греческое | -on | -a | criterion, phenomenon |
| Латинское | -us | -i | radius, alumnus, nucleus, genius |
| Латинское | -a | -ae | formula, vita |
| Латинское | -um | -a | datum, medium, bacterium |
| Латинское | -ix / -ex | -ices | index, appendix |
Упр.1.2.7. a . Образуйте множественное число от приведенных слов.
**Упр.1.2.7.b. Заполните пропуски нужной формой глагола to be.
a. Alumni of the university ______ invited to the graduation ceremony.
b. These bacteria _______being studied by university scientists.
c. The criteria for promotion ________ clearly stated.
d. The appendices ________ usually found at the back of a book.
e. Supernatural phenomena ______ of great interest to many people.
f. The hypothesis _______ supported by the data.
**Упр.1.2.7.c. Выберите правильный вариант числа существительного.
a. This phenomena / phenomenon follows the Newton Law.
b. Data / datum speak in favour of this theory.
c. This hydrolysis / hydrolyses is taken to follow the above scheme.
d. Conclusive proof for the dioxane structure of IV was acquired through an independent synthesis / syntheses.
e. This thesis / theses holds for more general cases of isomerisation.
f. The free proton resembles an-a particle in that it consists of a nuclei / nucleus without planetary electrons.
g. As long as the barrier to internal rotation is not too low, the molecule will remain in one of these minimum / minima.
h. The motion of a valency electron in its orbital is equivalent to the flow of a current in the loci / locus of its motion.
i. The equation will now be derived on a statistical basis / bases.
j. We still have a long way to go before we can claim to have solved the problem of sexuality in bacterium / bacteria.
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k. The equilibrium constant was found to equal 0.232 and the data to fit more accurately into a formulae / formula.
l. This value may be subject to refinement when analysis / analyses are complete.
m. These workers have examined the spectra / spectrum of some seventy nitrides.
*Упр.1.2.7.d. Заполните пропуски в предложениях словами из предложенного списка. Каждое слово используется дважды в каждой паре предложений, один раз в форме единственного числа, а другой раз - в форме множественного числа. Это упражнение напоминает о том, что неисчисляемое существительное, если оно принимает окончание -s, приобретает другое значение.
Quarter condition term experience youth good
Damage pain honour ground length saving
a. Under the _________ of the contract, you are obliged to repay the loan within two years.
The car was a reasonable price, but wasn’t in good _______ .
b. It has been an ______ to work with you. I’ve been very proud of what we’ve achieved together.
She has an _______ degree in geography.
c. I have a terrible ______ at the back of my neck.
He took great ______ to ensure his quests’ stay was pleasant.
d. After the accident, it took her a long time to come to _______ with the fact that she would never dance again.
During his first _______ of office, the Prime Minister made many sensible decisions.
e. We need a person with relevant ________ to fill the post.
He wrote a book about his _______ whilst crossing Africa on foot.
f. The Vicar was a kind man, and did a lot of _______ during his life.
There is a wide range of electrical _______ on sale in our village shop.
g. The day return fare is only $12 – a __________ of $8 on the full fare.
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Mrs Higgins’ house was broken into the other day, and all her _______ were taken.
h. Officers don’t live with ordinary soldiers. Their _______ are usually separate and more luxurious.
Interest rates have risen to 8.25 per cent, a rise of a _______ of a per cent.
i. For some reason, he was ashamed of his working class background, and went to great ______ to conceal the fact.
I can only swim one _______ of the swimming pool before I get tired.
g. Don’t sit on the grass. The _______ is still very wet.
I trust John. I have good _______ for believing his version of events.
k. The storm caused a lot of ________ .
She was awarded four thousand pounds’ ________ in the libel case.
l. Two _______ were seen running away from the scene of the crime.
_________ has always been the time for rebellion.
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